Oncor Inc. has raised $31.5 million in a secondary offering of 3million shares of common stock at $10.50 per share, thecompany announced on Wednesday.

The stock (NASDAQ:ONCR) rose 75 cents to $11.25 onWednesday.

The company markets for research use probes for the detectionof cancer and genetic disease. The company also has Food andDrug Administration-approved probes and reagents for thediagnosis of leukemia and lymphoma.

After the offering, the Gaithersburg, Md., company has 10million shares outstanding. Underwriters Smith Barney, HarrisUpham & Co. Inc. and Vector Securities International Inc. havea 450,000-share overallotment option.

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